17.47% is the change from 830 to 975
Calculation steps:
[( 975 - 830 ) ÷ 830] x 100 = 17.47%
Formula
Percentage change = [(975 - 830) / 830] x 100
Subtract the new number by the original number
975 - 830 = 145
145 ÷ 830 = 0.1746987951807229
0.1746987951807229 x 100 = 17.47%